Accumulator-plate.



No. 529,363. Patented luly 25, |399.

H. F. HQBEL..

ACCUMULATUR PLATE.

(Application Bled Jan. 81, 1899.) (Specimens.)

f A rrowf rs UNITED STATES ,PATENT OFFICE.

HEINRICH FRANZ HOBEL, OF BERLIN, GFRMANY, ASSIGNOR TG THE ACCUMULATOREN UND ELECTRlCITATS-WERKE `ACTIENGESELL SCHAFTVORMALS W. A. BGESE df CO., OF'SAME PLACE.

Accu M u I ATOR- PLATE.

srEcIrIcAfrroN forming part of- Letters Patent No. 629,363, daten July a5, ieee.

Application filed January 31, 1899. Serial No. 704,033. (Specimens.) I

To @ZZ whom. it may con/cern: Y

Beit known thatI, HEINRICH FRANZ HOBEL, a subject of the Emperor of Austria-Hun gary, residing at the city of Berlin, in the Kingdom of Prussia, German Empire, have made a new and useful Improvement in Accumulator- Plates, of which the following is a specification.

This inventiomrelates. to electrode-plates for electric accumulatore having/as large a lead surface as possible and a very eiective arrangement of the active mass orpaste, ywith a good circulation of the electrolyte.

The object of the invention is shown in the accompanying drawings.

Figure 1 is an elevation of the improved grid or latticed plate; Fig. 2, a section on the line 2 2 of Fig; 1; Fig. 3,- a section on the line 3 3 of Fig. 1; Fig. 4, a section-on the line #t 4 of Fig. 1; Fig. 5, a section on'the line 5 5 of Fig. 1, and Fig-6 a perspectiveview.

The basic idea of this improved electrodeplate consists in a large nu mbervof small flat formations having a 'triangular shape being arranged in layers alternately one on the other in such a way that the pointsof one layer correspond'to the bases of the'two adjacent layers. These electrodeplates are not, however, made by arranging the separate forma' tions upon and opposite one another in layers, but by casting. 'Y

' In the form of construction shown in Figs. 1 to 5, in which the formations represent equilater'al triangles vl, the latter are laid side by side in such a way that the point of one triangle points to the base of the triangle lying next to it. Rows formed in this way are arranged one above the other in a framek. By the arrangement'side by side of the triangles 'i hereinbefore mentioned the -result is attained that not only their points, but also their bases; are kept apart, so that the active mass passes from one side to the other. Fur.- ther, in consequence of this arrangement solid bars are formed passing through from one side of the framework to the other completely.

Thesesolid bars, which in cross-section have the forrnof an elongated rhombus, are provided With projections or lugs on both sides, which alternately,` according to the triangular form,l widen outwardly on the one side and onV the other side taper outwardlyto a point. Between these flaps the active mass is placed. which pass from one side ofthe frame tothe other and on Which'also projections are formed when the active mass is spread between the formations In -the manner hereinbefore described a grid or latticed plate is thus obtained which has a very largev surface and is also equally `suitable for forming according to the Plante or Faure system. The plate hereinbefore described is, however, especially suitable for the purpose of being arranged according to the formation ofV Faure, and later, during the period of working, being also" utilized according to Plan te.V If after a long period of Working the active mass becomes loose and partly falls out, the lead grid or latticed plate of larger surface which has been formed in the meantime with it can be further utilized by Plants method without a deleterious change being observable in the capacity of the plates. The separate parts of the latticed plates are so connected that, on the one hand, a thoroughly reliable stability and, on the other hand, a good circulation o1' the electrolyte is attained.

1. Electrode-plates for electric accumulator's, characterized by a large number of small `fiat formations having a triangular shape being placed alternately with their iiat sides to one another in such a way that .the points correspond to a similar position of the bases of the next layer, when placed side by side and affording a latticed work or grid of large surface composed of several columns thus formed and perforated inan oblique direction so that solid bars pass through from one side of the frame to the opposite one both in the latticed The adtive mass also forms bars,

work and also in the active mass after it has openings between the bars, substantially as been spread over said lattioed Work, snbstandescribed. 1o tially as hereinoefore set forth. In Witness whereof I have hereunto set my 2. An electrode-plate consisting of bars hand in presence of two Witnesses. each formed of a series of integrally-united HEINRICH FRANZ HOBEL. triangular formations arranged with their Witnesses: apexes alternately at the upper and lower WOLDEMAR HAUPT,

sides of the bars leaving diamond-shaped ERURIO L. GOLDSGHMIDT. 

